EP2805810A1 - Arrangement for producing a corrugated board web laminated on one side - Google Patents

Abstract

The invention relates to an arrangement for producing a corrugated cardboard web (36, 71). The arrangement comprises corrugating rolls (33, 35) for producing a corrugated web (31). It also has a glue applicator (37) and a pressure belt module (40) having a guide roller (42) with a deflection roller longitudinal central axis (41), a belt tensioning and belt guide roller (43) with a belt tensioning and belt running roller longitudinal center axis (81 ) and one around the guide roller (42) and the belt tensioning and belt roller (43) guided pressure belt (44) for pressing a cover sheet (11) to the provided with glue corrugated web (31). The arrangement further comprises a belt tension and belt roller adjustment device (83, 84) with a belt tension adjustment device (83) for tensioning the pressure belt (44) by uniformly varying the distance of the belt tensioning and belt roller longitudinal center axis (81) to the deflection roller Longitudinal central axis (41) and a belt travel adjustment device (84) for adjusting the profile of the Anpressbands (44) by tilting the Bandspann- and Bandlaufregelwalzen longitudinal central axis (81). Furthermore, the arrangement has an adjusting device (52, 66) for adjusting the belt tensioning and belt guiding roller (43) in response to control signals.

Description

The invention relates to an arrangement for producing a one-sided laminated corrugated cardboard web. A single-faced corrugated cardboard web comprises a corrugated web having a corrugation and a cover sheet connected thereto.

The prior art discloses such generic arrangements. Arrangements are known from the prior art, for example, comprising a movable tensioning roller, a heating roller and arranged between these, tiltable control roller. To the rollers, a pressure belt is guided, which is generally formed of a metal mesh. By tilting the control roller, the profile of the Anpressbands can be influenced, while a process of the tension roller affects the tension of the Anpressbands. The pressure belts are exposed to high wear, which greatly reduces their service life. For the adjustment of the rollers high forces are required. These arrangements have a very large footprint. Furthermore, they are very expensive to buy.

The invention has for its object to provide an arrangement for producing a single-faced laminated corrugated board, which overcomes the disadvantages mentioned above. In particular, an arrangement is to be provided in which the pressure belt has, in operation, over its width essentially an identical loop length or run length. Furthermore, the control forces for regulating the course of the Anpressbands and the clamping forces should be extremely low.

This object is achieved by the features specified in the independent claim 1. The essence of the invention lies in the fact that the pressing belt can be adjusted both in its course in the running direction and in its tension by means of the belt tensioning and belt guiding roller. The Bandspann- and belt roller thus assumes the function of a belt tensioner and a stripline roller. To change the tension of the pressure belt, a belt tension adjustment device is provided, while a belt travel adjustment device is provided for regulating the course of the pressure belt.

The uniform change in the distance between the belt tensioning and belt guiding roller to the deflection roller for pure belt tensioning is preferably carried out in a linear and / or arcuate manner, more preferably in a circular arc. The term "uniformly changing" is preferably understood to mean a change such that the band tensioning and belt-guiding roller longitudinal central axis has an identical orientation to the deflecting roller longitudinal central axis before and after changing the distance. The distance can be increased or reduced. Increasing the distance increases the tension of the pressure belt while decreasing the distance reduces the tension of the pressure belt.

The tilting movement of the band tensioning and bandpassing roller with respect to the deflecting roller is preferably linear and / or arcuate, more preferably arcuate. When tilting, the angle of the band tensioning and banding roller changes to the guide roller.

The belt tension adjustment device and the belt travel adjustment device can be actuated separately or jointly, which then becomes a separate one pure clamping of the Anpressbands and pure rules of the course of the Anpressbands or to a combined clamping of the Anpressbands and rules the course of the Anpressbands leads.

The detection device is preferably designed as a sensor device.

It is advantageous if the control device is an electrical or electronic control device.

It is advantageous if the adjusting device comprises at least one band-tensioning adjusting means and at least one strip-guiding adjusting actuator. Conveniently, the band-tensioning adjusting means is variable in its length. Preferably, the tape travel adjustment actuator is a tape travel panning actuator.

The adjusting device is in communication with the band tensioning and banding roller adjusting device.

The signal connections are wireless or wired.

It is advantageous if the deflecting roller and / or the band tensioning and banding roller are heated or heated during operation.

Further advantageous embodiments of the invention are specified in the subclaims.

The detection device according to dependent claim 2 measures, for example, directly the run lengths of the Anpressbands in the circumferential direction. Alternatively determined information about the calculation of the run lengths of the pressure belt in the circumferential direction. By then known run lengths conclusions about the web tension of the pressure belt and / or on the course of Anpressbands are possible.

The dependent claim 3 indicates preferred locations for determining the run lengths of the pressure belt. By detecting the outer edge run lengths, differences in the run lengths are particularly easy and clearly visible.

The setting of the Bandspann- and belt roller guide according to dependent claim 4 leads to a particularly homogeneous or low voltage of the Anpressbands, which in turn has a very high life of the Anpressbands. In addition, this has a positive effect on the quality of the corrugated web.

The embodiment according to dependent claim 5 allows a rotatable mounting of the band tensioning and belt roller. It is advantageous if the band-tensioning and band-guiding roller engages in the bearing device. Alternatively, the bearing device engages in the Bandspann- and belt roller guide frontally.

In the dependent claim 5, a preferred storage of Bandspann- and belt roller is also specified. The Bandspann- and band guide roller is rotatably supported on both sides by the bearing body of the bearing device. Preferably, the band-tensioning and band-guiding roller has two end bearing journals which engage in or pass through the bearing bodies. The bearing bodies then have bearing openings for receiving the journal. Alternatively, the bearing body engage in the Bandspann- and belt roller guide frontally.

According to the dependent claim 6, each of the bearing body via a link body, such as a bolt, pin or the like, hinged to a respective lever part. The articulation member defines a pivot axis for the bearing body or the band tensioning and bandpassing roller.

The band-tensioning actuating means according to dependent claim 7 are preferably adjustable in length or telescopic. They are preferably spaced from the articulation bodies eccentrically articulated to the bearing bodies and the lever parts. It is advantageous if the band-tensioning and belt-guiding roller longitudinal center axis extends substantially between the articulation member and a coupling body which couples the band-tensioning adjusting means to the lever member.

The coupling members according to dependent claim 8 are preferably designed as arms, levers or the like. It is advantageous if the coupling members are arranged spaced from the articulation bodies eccentrically on the lever parts. Preferably, the coupling members are parallel to each other. The coupling parts are, for example, coupling pins.

According to the dependent claim 9, the coupling members are coupled to each other via a synchronous shaft via connection means. The connection means are preferably designed as connection pins. The connection means and the coupling members are hinged together. The connection means are in rotation-tight connection with the synchronous shaft. It is advantageous if the synchronizing shaft has a synchronous shaft longitudinal central axis, wherein the connection center axes of the connection means offset with an identical amount or spaced to the synchronous shaft longitudinal central axis. The synchronous shaft longitudinal central axis thus extends between the coupling axes or the connection center axes. When the band tensioning and banding roller is displaced locally by one amount on a first side, the other side is displaced locally by the same amount. Thus, if, for example, the strip tensioning and striping roller is raised on one side, it will simultaneously be lowered accordingly on the other side. The virtual tilting point of the belt tensioning and belt guiding roller is preferably substantially centered with respect to the longitudinal extent of the synchronizing shaft on the belt tensioning and belt running roller longitudinal center axis.

According to the dependent claim 10, the coupling members or lever parts are pivotable by a Stellaktuator. It is advantageous if the adjusting actuator is coupled directly or indirectly to the synchronizing shaft for pivoting about its synchronous shaft longitudinal central axis. A pivoting of the synchronous shaft about its synchronous shaft longitudinal central axis in turn has a pivoting of the connecting means about the synchronous shaft longitudinal central axis, which in turn has a pivoting of the coupling members, which are connected to the lever parts via the coupling parts. Due to the uniform, caused from both sides of the Bandspann- and belt roller roller tilting of the Bandspann- and belt roller against the guide roller only small differences in length of the Anpressbands occur when tilting the Bandspann- and belt roller against the guide roller. In the tilting of the band tensioning and belt roller with respect to the guide roller there is a displacement on both sides or tilting the Bandspann- and belt roller with respect to the guide roller. Furthermore, so only low control forces are required.

Alternatively, the adjusting actuator engages one of the coupling members.

The pivot bearing means according to dependent claim 11 is preferably designed as a bearing opening. Alternatively, it may also be a bearing journal or the like. The lever parts are preferably articulated on a machine housing, machine frame or the like. The pivot bearing means is disposed between the coupling body coupling the band tension adjusting means to the lever part and the coupling part.

Fig. 1

einen Teil einer Wellpappe-Anlage mit erfindungsgemäßen Anordnungen zur Herstellung einseitig kaschierter Wellpappebahnen,

Fig. 2

ein benachbart zu einer ersten Riffelwalze angeordnetes Anpressband-Modul einer der in Fig. 1 dargestellten erfindungsgemäßen Anordnung zur Herstellung einer einseitig kaschierten Wellpappebahn,

Fig. 3

eine Draufsicht auf das in Fig. 2 dargestellte Anpressband-Modul und die erste Riffelwalze,

Fig. 4

eine perspektivische Ansicht des in den Fig. 2 und 3 dargestellten Anpressband-Moduls und der ersten Riffelwalze,

Fig. 5

eine Seitenansicht des in den Fig. 2 bis 4 dargestellten Anpressband-Moduls und der ersten Riffelwalze sowie einer zweiten Riffelwalze, wobei sich die Bandspann- und Bandlaufregelwalze in einer ersten Position befindet,

Fig. 6

eine der Fig. 5 entsprechende Ansicht mit verdeckt dargestellten Linien,

Fig. 7

eine der Fig. 5 entsprechende Ansicht, wobei sich die Bandspann- und Bandlaufregelwalze in einer zweiten Position befindet,

Fig. 8

eine der Fig. 7 entsprechende Ansicht mit verdeckt dargestellten Linien,

Fig. 9

eine Seitenansicht des in den Fig. 2 bis 8 dargestellten Anpressband-Moduls und der ersten Riffelwalze, wobei sich die Bandspann- und Bandlaufregelwalze in einer weiteren Position befindet, und

Fig. 10

eine der Fig. 9 entsprechende Ansicht, wobei noch verschiedene Hebellängen eingezeichnet sind.

Hereinafter, a preferred embodiment of the invention will be described by way of example with reference to the accompanying drawings. Showing:

Fig. 1

a part of a corrugated cardboard plant with arrangements according to the invention for producing single-faced corrugated cardboard webs,

Fig. 2

a pressure belt module disposed adjacent to a first corrugating roller one of Fig. 1 illustrated arrangement according to the invention for producing a one-sided laminated corrugated board web,

Fig. 3

a top view of the in Fig. 2 illustrated pressing belt module and the first corrugating roll,

Fig. 4

a perspective view of the in the FIGS. 2 and 3 illustrated pressing belt module and the first corrugating roll,

Fig. 5

a side view of the in the Fig. 2 to 4 illustrated pressing belt module and the first corrugating roller and a second corrugating roller, wherein the Bandspann- and belt roller guide roller is in a first position,

Fig. 6

one of the Fig. 5 corresponding view with hidden lines,

Fig. 7

one of the Fig. 5 corresponding view, wherein the band tensioning and banding roller is in a second position,

Fig. 8

one of the Fig. 7 corresponding view with hidden lines,

Fig. 9

a side view of the in the Fig. 2 to 8 illustrated Anpressband module and the first corrugating roll, wherein the Bandspann- and band guide roller is in a further position, and

Fig. 10

one of the Fig. 9 corresponding view, where still different lever lengths are shown.

A corrugated plant, as in Fig. 1 partially, schematically illustrated, comprises a first arrangement 1 for producing a one-sided laminated, endless corrugated web and a second arrangement 2 for producing a one-sided laminated endless corrugated web.

A first splice device 3 and a second splice device 4 are associated with the first arrangement 1 for producing a single-faced, continuous corrugated web, while a third splice device 5 and a fourth one are used for the production of a single-faced, continuous corrugated web Splice device 6 are assigned.

The first splicing device 3 comprises a first unwinding unit 8 for unrolling a finite first material web from a first material web roll 7 and a second unwinding unit 10 for unrolling a finite second material web from a second material web roll 9. The finite first and second material webs are used to provide an endless web first material web 11 connected to each other by means of a connecting and cutting unit, not shown, of the first splicing device 3. Each time the finite first and second material webs are joined together, a first joint seam is produced in the endless first material web 11.

The second splicing device 4 is designed in accordance with the first splicing device 3. This has for rolling a finite third web of material from a third web roll 12, a third unwinding unit 13 and for unrolling a finite fourth web of material from a fourth web roll 14, a fourth unwinding unit 15. The finite third and fourth web are for providing an endless second web 16 by means of a not shown connecting and cutting unit of the second splicing device 4 connected to each other. Each time the third and fourth material webs are joined together arises in the endless second material web 16, a second connecting seam.

The endless first material web 11 is fed via first deflecting rollers 17 and the endless second material web 16 is fed via at least one second deflecting roller 18 to the first arrangement 1 for producing a single-faced, lined corrugated cardboard web.

The third splicing device 5 is designed in accordance with the first splicing device 3. This includes for rolling a finite fifth web of material from a fifth web roll 19, a fifth unwinding unit 20 and for rolling a finite sixth web of material from a sixth web roll 21, a sixth unwinding unit 22. The finite fifth and sixth web are provided to provide an endless third web of material 23 by means of a not shown connecting and cutting unit of the third splice device 5 connected to each other. Each time the fifth and sixth material webs are joined together, a third joint seam is formed in the endless third material web 23.

The fourth splicing device 6 is essentially designed in accordance with the second splicing device 4. This includes for rolling a finite seventh web from a seventh web roll 24 a seventh roll-off unit 25 and for rolling a finite eighth web from an eighth web roll 26 an eighth roll-off unit 27. The finite seventh and eighth web are used to provide an endless fourth web 28 by means of a not shown connecting and cutting unit of the fourth splice device 6 connected to each other. Each time the seventh and eighth webs are joined together arises in the endless fourth web 28, a fourth seam.

The endless third material web 23 is fed via third deflection rollers 29 and the endless fourth material web 28 is fed via at least one fourth deflection roller 30 of the second arrangement 2 for producing a single-faced, continuous corrugated cardboard web.

The first arrangement 1 for producing a single-faced, endless corrugated cardboard web comprises a corrugated endless first corrugated web 31 from the endless second material web 16 rotatably mounted about a first axis of rotation 32 first corrugating roller 33 and about a second axis of rotation 34 rotatably mounted second Corrugated roller 35. The corrugating rollers 33, 35 form for performing and corrugating the endless second material web 16 from a nip, the axes of rotation 32, 34 parallel to each other. The corrugating rollers 33, 35 form a corrugation device.

For connecting the endless first corrugated web 31 with the endless first material web 11 to a single-faced first corrugated board web 36, the first arrangement 1 for producing a single-faced, endless corrugated board web has a first glue application device 37, which has a first glue metering roller 38, a first glue container (US Pat. not shown) and a first glue applicator roll 39 comprises. For performing and gluing the endless first corrugated web 31, the first glue application roller 39 forms a gap with the first corrugating roller 33, wherein the first glue application roller 39 is arranged partially within the first glue container. The glue is applied on tips of the corrugation. The first glue metering roller 38 abuts against the first glue applicator roller 39 and serves to form a uniform size coat on the first size coat roller 39.

The first material web 11 is then joined together with the first corrugated web 31 provided with glue from the glue container in the first arrangement 1 for producing a continuous corrugated cardboard web laminated on one side.

For pressing the first material web 11 against the provided with glue, first corrugated web 31, which in turn rests in regions on the first corrugating roller 33, the first arrangement 1 for producing a one-sided laminated, endless corrugated web has a Anpressband module 40th

The pressure belt module 40 is arranged above the first corrugating roller 33. It has a deflecting roller 42 rotatably mounted about a third axis of rotation 41 and a rotatably mounted belt tensioning and belt guiding roller 43 arranged downstream of the deflecting roller 42 and an endless pressure belt 44 which is arranged around the deflecting roller 42 and the belt tensioning and belt guiding roller 43 in one direction of travel Circumferential LR is guided around. The third axis of rotation 41 is fixed. The guide roller 42 has two end bearing journals 45 which are rotatably mounted in deflection roller bearings (not shown).

The first corrugating roller 33 engages in a space present between the guide roller 42 and the belt tensioning and belt guide roller 43 area. The pressure belt 44 is thereby deflected by the first corrugating roller 33. The pressure belt 44 presses against the first material web 11, which in turn is pressed against the provided with glue, applied to the first corrugating roller 33 first corrugated web 31. It's in its opposite outer edge regions 82 run lengths L1 and L3, and substantially centered therebetween a run length L2. Ideally, the run lengths L1, L2, L3 are identical. In operation, these can deviate from each other without regulation.

The belt tensioning and belt guiding roller 43 can be varied in its distance uniformly relative to the deflecting roller 42 and can also be tilted relative to the latter by a tilting point K.

The band tensioning and banding roller 43 has two opposite, end bearing journals 46, which are circular or circular in cross-section. The belt tensioning and belt guiding roller 43 has a longitudinal central axis 81. Each bearing journal 46 is rotatably mounted in a bearing body 47 with a bearing opening 48 adapted to the respective bearing pin 48 about the longitudinal central axis 81, which thus also forms a rotational axis or bearing axis. Each bearing body 47 is articulated via a link body 49, which defines a pivot axis 50, on a lever part 51. The bearing body 47 are identical. The lever parts 51 are also formed identical.

Furthermore, a length-adjustable band-tensioning adjusting means 52 is functionally arranged between each bearing body 47 and the associated lever part 51. Preferably, the band-tensioning adjusting means 52 are designed to be telescopic. Each band-tensioning adjusting means 52 is articulated to the respective bearing body 47 via a coupling body 54 which predetermines a pivot axis 53. In each bearing body 47, the Anlenkkörper 49 and the coupling body 54 are spaced from the bearing opening 48 and spaced from each other. Besides, each one is Bandspann-adjusting means 52 pivotally connected via a pivot axis 55 predetermined coupling body 56 with the respective lever member 51. In each lever part 51, the articulation bodies 49 are also arranged at a distance from the coupling bodies 56. The pivot axes 50, 53, 55 are parallel to each other.

With a uniform actuation of the two band-tensioning adjusting means 52, the bearing body 47 and the belt tensioning and belt-guiding roller 43 mounted in the latter are pivoted about the pivot axis / n 50 relative to the lever parts 51. The tensioning movement of the belt tensioning and belt guiding roller 43 is thus circular arc-shaped. This leads to a change in the tension in the pressing belt 44. If the belt tensioning and belt running roller 43 is further removed from the deflection roller 42, the tension in the pressure belt 44 is increased. Conversely, the tension in the pressure belt 44 is reduced as the belt tensioning and belt guiding roller 43 approaches the deflection roller 42.

The two lever parts 51 are coupled to each other substantially via coupling members 57 and a synchronous shaft 58. At each lever member 51 is articulated about a pivot axis 59 predetermining coupling part 60 of the coupling members 57. In each lever part 51, the pivot axes 59 spaced from the pivot axes 55 are arranged. In each coupling member 57 engages a connection means 61 which is fixedly connected at the end to the synchronous shaft 58 and extends eccentrically to the synchronous shaft longitudinal central axis 62. The connection means 61 are designed like a pin and are arranged at opposite ends of the synchronous shaft 58. The connection means 61 are arranged in a common plane of symmetry, which also passes through the synchronous shaft longitudinal central axis 62. They have an identical distance to the synchronous shaft longitudinal central axis 62 and have spaced or mutually offset connecting central axes 63. The pivot axes 59, the synchronous shaft longitudinal central axis 62 and the connecting central axes 63 parallel to each other and parallel to the pivot axes 50, 53, 55, when no control is performed.

Between the pivot axes 55, 59, a bearing opening 64 is arranged in each lever part 51. In each bearing opening 64 engages a bearing body (not shown) and thus provides a pivot axis 65 for the respective lever member 51. The pivot axes 65 are fixed and parallel to the pivot axes 50, when no control is performed. The bearing body is arranged on the adjacent bearing means which rotatably supports the deflection roller 42.

The synchronous shaft 58 is pivotable about its synchronous shaft longitudinal central axis 62 by means of a pivot drive 66 which is coupled directly or indirectly to the synchronous shaft 58. A pivoting of the synchronous shaft 58 about its synchronous shaft longitudinal central axis 62 in turn has a displacement of the two connected connection means 61 to the synchronous shaft longitudinal central axis 62 according to. Through the coupling between the connection means 61 with the coupling members 57, these are then also pivoted about the coupling parts 60 and their pivot axis 59. The coupling parts 60 are again in articulated connection with the two lever parts 51. By the coupling of the two lever parts 51 via the synchronous shaft 58, the two lever members 51 are pivoted in opposite directions to each other, thus having a tilting of the band tensioning and band guide roller 53 to the tilting point K has. The connection means 61 or lever parts 51 are pivoted in the same amount. So if one lever part 51 is moved up, the other one Lever part 51 lowered due to the coupling according to the same amount. The tape running movement of the belt tensioning and belt guiding roller 43 is thus circular arc-shaped. Preferably, the run lengths L1, L2, L3 of the pressure belt 44 change only marginally during the tilting of the belt tensioning and belt guiding roller 43. It is advantageous if it needs to adjust the synchronous shaft 58 substantially no adjustment torque.

When tilting the belt tensioning and belt guiding roller 43 with respect to the deflecting roller longitudinal center axis 41 for changing the course of the pressure belt 44, the tension in the pressure belt 44 remains essentially unchanged over its width. The adjustment of the belt tensioning and belt guiding roller 43 by the belt travel adjusting device 84 thus takes place in such a way that the tension in the pressure belt 44 remains essentially unchanged over its width or at most undergoes a marginal change. In the prior art, pressure-belt modules are known in which, in contrast, with a tilting of a control roller for changing the course of a pressure belt, the tension in the pressure belt changes over its width. Furthermore, the prior art knows Anpressband modules with band tensioning rollers and stripline rollers, wherein in the common adjustment of a band tensioning roller and stripline roller, the tension of the Anpressbands remains substantially unchanged. However, the latter Anpressband modules are expensive.

The pivot drive 66 is connected via a signal line 67 with a control device 68 in signal connection. Furthermore, two detection sensors 69 are in signal communication with the control device 68. The detection sensors 69 are aligned such that they surround the edge regions 82 of the pressure belt 44 and a center region of the pressing belt 44 between the guide roller 42 and the belt tensioning and belt guiding roller 43 substantially opposite to the first corrugating roller 33. The run lengths L1, L2, L3 are then determined. The band tensioning and banding roller 43 is then optionally adjusted so that the run lengths L1, L2 and L3 are substantially identical. If necessary, the web tension is adjusted accordingly. The tilting point K is substantially due to a resultant line load LL of the service belt 44. The line load LL is substantially perpendicular to the tape travel movements of the belt tensioning and belt guiding roller 43.

In Fig. 10 Hebelarmlängen 11, 12, 13 and 14 are located, all of which originate from the pivot axis 65. The first lever arm 11 goes up to the longitudinal center axis 81 of the belt tensioning and belt running roller 43 when it is in a first strip running end position. The lever arm 13 goes up to the longitudinal center axis 81 of the band tensioning and banding roller 43, when it is in the other, second belt travel end position. The lever arms 12 and 14 each go to the pivot axis 59 in their respective end position. It is advantageous if ratios 11 to 12 and 13 to 14 are substantially identical.

Essentially, through the bearing body 47 and the articulation body 49, a band-tension adjusting device 83 is formed.

Essentially, by the lever members 51, the coupling members 57, the coupling members 60, the connecting means 61 and the synchronizing shaft 58, a tape travel adjusting device 84 is formed.

The belt tension adjustment device 83 and the belt travel adjustment device 84 form a belt tensioning and belt travel roller adjustment device 83, 84.

The pivot drive 66 forms a Stellaktuator. The pivot drive 66 and the band-tensioning adjusting means 52 form an adjusting device. They can be operated together or separately.

For buffering and buffering the single-faced laminated corrugated board web 36, this is fed to a first memory device 70, where it has loops.

The second arrangement 2 is identical to the first arrangement 1. The previous description is referenced. The fourth material web 28 is corrugated by the corrugating rollers 33, 35, so that then there is a second corrugated web. The second corrugated web is connected to the third material web 23, so that a second single-faced corrugated cardboard web 71 is formed. The second corrugated web 71 is stored in a second memory device 72 and buffered.

Downstream of the storage devices 70, 72 is a preheater 73, which comprises three heating rollers 74 arranged one above the other. The pre-heater 73, the first one-sided laminated corrugated board web 36 and the second single-faced corrugated cardboard web 71 and a cover sheet 75 from a fifth splice device 76 and partially wrapped around the respective heat roller 74th

Behind the pre-heater 73, a gluing unit 77 is arranged with two superposed Belumimungswalzen 78, partially in a

Glue bath 79 are immersed. The single-faced corrugated cardboard webs 36, 71 are in contact with the respective gluing roller 78.

Behind the gluing unit 77, a heating device 80 is arranged. In the heating device 80, the single-faced corrugated cardboard webs 36, 71 and the cover sheet 75 are pressed against each other and glued together.

Claims (16)

Arrangement for producing a single-faced, endless corrugated cardboard web (36, 71), a) having a first corrugating roll (33) and a second corrugating roll (35) for producing a corrugated web (31) having a corrugation, b) with a glue application device (37) for applying glue to tips of the corrugation, and c) with a pressure belt module (40) comprising i) a deflection roller (42), - Has a guide roller longitudinal central axis (41), ii) a band tensioning and banding roller (43), comprising a band tensioning and banding roller longitudinal center axis (81), iii) an endless pressing belt (44) guided around the deflecting roller (42) and the belt tensioning and belt guiding roller (43) for pressing a cover web (11, 23) against the tips provided with glue at the first corrugating roller (33) Corrugated web (31), iv) a belt tensioning and belt roller adjustment device (83, 84) for adjusting the belt tensioning and belt running roller (43), the belt tensioning and belt running roller adjustment device (83, 84) a belt tension adjusting device (83) for tensioning the pressure belt (44) by uniformly varying the distance of the belt tensioning and belt running roller longitudinal center axis (81) from the deflection roller longitudinal center axis (41) via the band tensioning and banding roller longitudinal center axis (81), and a strip-run adjusting device (84) for adjusting the course of the pressure belt (44) by tilting the belt tensioning and belt-guiding roller longitudinal center axis (81) with respect to the deflection roller longitudinal center axis (41), v) a pressing belt (44) associated pressing belt detecting means (69), vi) a press belt control device (68), which is in signal communication with the press belt detecting means (69), and vii) an adjusting device (52, 66) connected to the band tensioning and banding roller adjusting device (83, 84) for adjusting the band tensioning and banding roller (43) in response to the control band (68) of received control signals. Arrangement according to claim 1, characterized in that the contact pressure detection device (69) at least two over the width of the Anpressbands (44) spaced running lengths (L1, L2, L3) of the Anpressbands (44) detected in its direction (LR). Arrangement according to claim 1 or 2, characterized in that the contact pressure detection device (69) has two edge run lengths (L1, L3) of the pressure belt (44) in its running direction (LR) in opposite edge regions (82) of the pressure belt (44). and an intermediate running length (L2) of the pressing belt (44) between them is detected in its running direction (LR). Arrangement according to claim 2 or 3, characterized in that the adjusting device (52, 66) adjusts the belt tensioning and belt guiding roller (43) such that the running lengths (L1, L2, L3) of the pressure belt (44) are substantially identical over its width are. Arrangement according to one of the preceding claims, characterized in that the Bandspann- and stripline roller (43) is rotatably mounted in a bearing device (47), wherein preferably the bearing means (47) arranged end to the Bandspann- and stripline roller (43), a respective Bearing axis (81) predetermining bearing body (47) for rotatably supporting the Bandspann- and belt roller (43). Arrangement according to claim 5, characterized in that each of the bearing body (47) is articulated eccentrically to the bearing axis (81) via a link body (49) on a respective lever member (51) and with respect to the lever member (51) is pivotable. Arrangement according to claim 6, characterized in that the adjusting device (52, 66) belt tensioning adjusting means (52), wherein in each case one of the belt tensioning adjusting means (52) between one of the bearing body (47) and one of the lever parts (51) for uniform Swiveling the bearing body (47) to the articulation body (49) acts. Arrangement according to claim 6 or 7, characterized in that the tape travel adjusting device (84) comprises coupling members (57), wherein each of the coupling members (57) is connected to one of the lever members (51) via a coupling member (60). Arrangement according to claim 8, characterized in that the coupling members (57) via a synchronous shaft (58) via connecting means (61) are coupled together, wherein the connecting means (61) parallel and spaced from each other, an identical distance to a synchronous shaft longitudinal central axis ( 62) having connecting central axes (63) for the opposite, equal amount offset the lever parts (51). Arrangement according to claim 8 or 9, characterized in that the adjusting device (52, 66) comprises a Stellaktuator (66) through which the coupling members (57) are pivotable. Arrangement according to one of claims 8 to 10, characterized in that each lever part (51) between the articulation member (49) and the coupling part (60) comprises a pivot bearing means (64) to its pivotable arrangement. Arrangement according to one of the preceding claims, characterized in that the band tensioning and banding roller (43) can be tilted by a tilting point (K), wherein the tilting point (K) substantially on a resulting line load (LL) of the Anpressbands (44). Arrangement according to one of the preceding claims, characterized in that for tilting the belt tensioning and belt speed control roller (43) opposite the deflection roller (42) at a local displacement of the belt tensioning and belt speed control roller (43) by an amount on a first side of a reverse local displacement the other side the Bandspann- and belt roller (43) takes place by the same amount. Arrangement according to one of the preceding claims, characterized in that the uniform change of the distance of the belt tensioning and belt roller (43) to the guide roller (42) arcuate, more preferably arcuate takes place. Arrangement according to one of the preceding claims, characterized in that a tilting of the belt tensioning and belt roller (43) relative to the guide roller longitudinal central axis (41) for adjusting the profile of the Anpressbands (44) takes place such that the run lengths (L1, L2, L3 ) of the pressure belt (44) remain substantially identical over its width. Arrangement according to one of the preceding claims, characterized in that a tilting of the belt tensioning and belt roller (43) relative to the guide roller longitudinal central axes (41) for adjusting the profile of the Anpressbands (44) takes place such that the voltage of the Anpressbands (44) via the width of which remains essentially unchanged.

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